low-alloy
low-altitude
low-angle
low-apogee
low-ash
low-attenuation
low-bandgap
low-bar
low-beta
low-boiling
  low-bracket
low-caking
low-capacity
low-carbon
low-cloud
low-coal
low-coercitivity
low-coherence
low-coking
low-conductivity
low-consequence